MediaWiki Visualization is a python program that watches a wiki for changes using the MediaWiki API. It loads up a list of pages and their link structures and then watches the change log. When a page is changed it links the user to the page as well as linking to any pages it links to.
This is an example on rit's Ritpedia.
Note: The second mode disables the users and just shows the pages and how they are linked. Note that this is still a very new wiki.
I have uploaded another video with the ability to pull the page list.
Future Plans: Keep track of categories for every page. That will allow it to look a bit more linked as some wikis rely on the category system as part of its navigation scheme.